Condensation product containing sulphur



'35 tained .b

phur, ch oride on 188 parts of henol are I Patented Sept. 8, 1925.

UNITED STATES- PAUL VIRCK, OF DESSA'U' IN ANH ALT, GERMANY, ASSIGNOB TOACTIEN GESELLSCHAIT FUR ANILIN FABRIKATIO'N, F BERLIN, GERMANY.

PATENT ounce.

GONDENSATION PRODUCT CONTAINING SULPHUR.

1T0 Drawing.

To all whom it may concern: 4 Be it known that 1, PAUL Vmox, a citizenof the German Republic, residing at Dessau in Anhalt, Germany, mypost-ofiice 5 address being Kaiserplatz 14, Dessau in Anhalt, "Germany,have invented certain new and useful Improvements in CondensationProducts Containing Sulphur, of which the following is a s ecifieation.

.Resinous bodies obtainable by action of sulphur chlorideon-hydroxybenzenes have the" roperty of being adsorbedfi'om dilute alka'ine solutions by textile fibres and other substrata and in thiscondition of fixing dyestuifs to produce dyeings fast to washing. Theyhave the disadvantage, however, that they color the substratum a dirtyyellow so nthat the dyeings obtained with acid dyestuffs are unfavorablyafiected in respect to their tint and clearness. A method of avoidingthis objectionoconsists in treating the sulphur containing compoundswith oxidizing or reducing agents in alkaline solutions.

, According to'the present invention the resinous bodies conta ning thesulphur are converted by treatment at a raised temperature withan'hydroxybenzene sulfonic acid into compounds which are colorless whenadsorbed on textile fibres and act as mor- 3 0 dants for basicdyestufi's.

The following examplesillustrate the in- .by weight: v

1. 320 parts of the sulphur compound obthe action of 320 parts ofsulmelted together with 320 parts o the crude hydro benzene sulfonicacid obtainable by the action of one molecular proportion of 40 fumingsulfuric acid on one molecular prophur capable of being adsorbed byApplication gliled April 25, 1925. Serial No. 25,945.

portion of phenol. The temperature is gradually raised to -170 C, Thefused mass which is atfirs't a mobile liquid thickens and after 1 2hours reaction is completed. The resinous body solves easily in asolution 0 sodium carbonate.

2. 320 parts of the parent material used in example 1 are meltedtogether with 640 parts of crude hydroxybenzene sulfonic" acid at anincreasing temperature. At 120. C. a lively reaction occurs. Thetemperature is maintained at to175 C. until the mass has become viscous.The, body produced dissolves to a colorless solution in sodium carbonatesolution.

- What I claim is,-

1-.' Colorless compounds containing sulphurcapable of being adsorbed btextile fibres and other substrate obtained y treat-' ing' with anhydroxybenzene sulfonic acid at a raised temperature a resinous bodyobtainable by the action of sulphur chloride .on an h droxybenzene.

2. Go orless compounds containing sulphur capable of being adsorbed btextile bres and other su'bstrata obtained by treatin with a crudehydroxybenzene sulfonic acid at a raised temperature a resinous bodyobtainable by the action of sulphur chloride on an hydroxybenzene.vention without lumtmg it, the parts being Colorless compoundscontaining sulfibres and other substrata obtained y treatin with a crudehydroxybenzene sulfonic acid at a raised tem erature the resinous bodyobtainable by t e action of sulphur chloride on phenol.

In tastimony'whereof I affix my si ature.-

. PAUL VI CK.

roduced dis-.

textile

